Locomotive.



D. T. FISHER.

LOGUMOTIVE.

APPLICATION FILED A1 11.16, 1910.

1,1 32,838. Patented Mar. 23, 1915.

3 SHEETSSHEET 1.

Witnesses YHE NORRIS PETERS Co..PHO1o-LITHO.. WASHINGTON.

D. T. FISHER.

LOGOMOTIVE.

APPLICATION FILED APR.16, 1910.

1,1 32,838. Patented Mar. 23, 1915.

3 SHEETS-SHEET 2.

l oro'LlTHn.. wAsHlNroN. D. A.

D. T. FISHER. LOGOMOTIVE. APPLIUATION FILED APR.16,1910.

1,132,838, Patented Mar. 23, 1915.

3 'sHEBTsfsHEBT 3.

THE NORRIS PETERS Ca. PHoTo-LJTHU.. WASHING roN. D. C.

' T0 all whom t may concern:

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DUDLEY T. FISHER,'OF COLUMBUS, OHIO, ASSIGNOIR. T0 THE JEFFREY lglVlIANU'IEAGTUBING- COMPANY, A CORPORATION OFYOI-IIO.

LOCOMOTIVE.

specification of Letters Patent. i Patented Mar, 23, 1915 Application filed April 1 6, 1910. Serial No. 555,787.

Be it known that I, DUDLEY T. FIsHnR, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Locomotives,

' of which thev following is a specification,

reference being had therein to the accompanying drawing. t

This invention relates to electric locomoltives and particularly to those wherein a The object of this invention is therefore the development of a gearless -locomotive and, to that end,the invention consists in the structure of parts and in their combination substantiallyA as hereinafter set forth and claimed. v

In the accompanying drawings which form a part of this specification, Figure 1 represents in side elevation a locomotiver embodying the present invention; Fig.. 2 represents a longitudinal, vertical section through the motor frame of the locomotive showing the armatures and field magnets of the motors in elevation; Fig. 3 is a vertical, transverse section through the locomotive taken in the plane indicated by the line 3-3 Fig. 1; and Fig. 4 is a vertical,

transverse section of the apparatus seen in Fig. 3 taken in the plane indicated by the line M. v

In this locomotive as at present designed,

two motors are associated and theyy areV ymounted in the locomotive frame designated i by 5. The driving wheels are designated by 6 and their axles by 7. The axles arer preferably journaled in axle boxes spring mounted in the sides of the locomotive frame. In mounting and lconnecting up the driving motors, a motorvframe is constructed of a width to extend-practically from one wheel 6 to the other and is fixed in vertical position in the locomotive frame byV any suitable means as by angle bars'indicated at 8 which extend Yfrom one side to the Vother of the frame 5. The ,motor frame consists preferably of a base piece as 9 provided with a middle column 10, and two angle plates 11.

l and 12 connected at their lower ends to the pears as Fig. 3and has side pieces as 13 which close up the frameand with it form a'hous'ing for the field magnets and arma tures. I The column 10 divides the motoi'frame into two compartmentsand through each compartment passes one. of the driving axles. Extendingl about,A each axle from driving wheel to driving wheel'is located a sleeve 14 which is sufficiently` larger than the axle toV allow for the .play of the latter dueto the spring mounting thereof in the locomotive frame. To'each of these sleeves y y are close to the ends of the `armaturevand close to the said bearings at the outside of the motor frame there are. fixed upon the sleeve disks as 20 from which driving connection is made to the driving wheels.

The driving wheels, as indicated (Fig. 3j), are cupped on VKtheir inner sides to proi vide for housing thedriving disks and the vvdriving connections. These driving connectionsmust be of ayielding construction `,to provide for the relative vertical movement between the disks and the driving wheels. Such connection is also preferably of a sort such that it will yield somewhat to the torque ofthe .motor in starting and the momentum of the locomotivel in stopping. A connectionfor this purpose is typified in Figs. 3 and 4. Opposed klevers as 21, in

pairs, are pivoted to the wheel 6. Between l their` outer ends coiled springs as 22 are j located, while between their inner ends pins as 23-project from the disks 20. Stop pins as 24 maybe provided for the outer ends of the lever 21. p

The structure of the armature, their commutatorsand brushes have not been shown nor has thecircu'itingbeen indicated, since they are well known and form no specific part of this invention. y v

Locomotives embodying my invention are especially intended for under-ground use in mines or in freight tunnels. In locomotives 1410 of this class great power -is required but at the same time the external dimensions of the locomotive must be kept within certain relatively small limits. By providing a consequent pole below the armature l am enabled to provide a much larger armature than would be the case if all four of the poles were provided with coils. It is also very desirable, and in fact essential, when a locomotive is being used for mines that the electrical parts ofthe motor be inelosed, not only to exclude dust and dirt, but also to exclude explosive gases which are frequently met with and which might be fired by sparks from the commutator. ln the construction which I have shown and described there is provided a very powerful and at the same time compact motor arrangement which is inclosed in a tight casing.

The invention claimed is l. In an electric locomotive, the combination of a main frame, two transverse axles on which the frame is supported, track wheels at the ends of the axles, a continuous i box-like motor field frame having a central partition which divides it into two similar compartments, means for mounting the field frame on the main locomotive frame with the axles passing through the said compartments considerably below the centers thereof, the frame extending at the top beyond the peripheries of the wheels and terminating at the bottom inside the peripheries of the wheels, motor armatures mounted in the Copies of this patent may be obtained for compartments normally concentrically with the axles and connected thereto, and four motor poles in each compartment for cooperation with the armature, one pole being located above the armature and provided with a coil, two poles being located at the sides of the armature and provided with coils, and the fourth pole being located belovj the armature and not provided with a coi 2. In an electric locomotive, the combination with the frame of the locomotive, of driving wheels having their axles j ournaled in said frame, a vertically disposed motor frame secured to the locomotive frame and having a base piece provided with a middle column and having also two angle plates one secured to each end of said base piece and to the top of said column thereby forming two compartments through which said axles pass, a wound. field pole upon each side of said column in each compartment and another upon the uprights of each angle plate, an armature mounted upon each axle transversely of each compartment, and driving connections between the Varmature and the drivingwheels.

In testimony whereof l affix my signature, in presence of two witnesses.

E. R. MERRILL, E. P. SNIVELY.

ive cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

